package com.xiaobai.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.net.URI;

/**
 * @Author
 * @Description
 * @Date created in 9:13 2025/2/7
 */
@Slf4j
@Component
public class RtGlobalFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        URI uri = request.getURI();
        long start = System.currentTimeMillis();
        log.info("请求【{}】开始:时间:{}", uri, start);
        //=====================以上是前置逻辑=======================
        return chain.filter(exchange).doFinally(result -> {
            long end = System.currentTimeMillis();
            log.info("请求【{}】结束:时间:{},耗时:{}ms", uri, end, end - start);
        });//因为他是异步的 所以需要doFinally
        //=====================以上是结束逻辑=======================
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
